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Gene Review

ACS9  -  1-aminocyclopropane-1-carboxylate synthase 9

Arabidopsis thaliana

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Disease relevance of ETO3

  • These results indicate that ethylene is needed, but not sufficient, for the induction of ACS9 during hypoxia [1].

High impact information on ETO3

  • The eto1, eto2, and eto3 mutations and cytokinin treatment increase ethylene biosynthesis in Arabidopsis by increasing the stability of ACS protein [2].
  • Here, we present the positional cloning of the gene corresponding to the dominant eto3 mutation and show that the eto3 phenotype is the result of a missense mutation within the C-terminal domain of ACS9, which encodes one isoform of the Arabidopsis ACS gene family [2].
  • IAA induces all ACS genes, except ACS7 and ACS9; CHX enhances the expression of all functional ACS genes [3].
  • An elevated production of ethylene was measured in seedlings of the ethylene-overproducing eto3 mutant [4].
  • The mtk/eto3 double mutant displayed a metabolic plant phenotype that was similar to mtk with reduced AdoMet levels at sulfur-limiting conditions [4].

Biological context of ETO3

  • Even though mature eto3 plants did not produce elevated ethylene levels, and AdoMet homeostasis in eto3 plants did not differ from that in wild type, shoot growth was severely retarded [4].

Anatomical context of ETO3

  • Furthermore, the results of nematode attraction assays suggest that the hypersusceptibility of rhd1-4 and the ethylene-overproducing mutant eto3 may be the result of increased attraction of H. schachtii-infective juveniles to root exudates of these plants [5].

Associations of ETO3 with chemical compounds


Other interactions of ETO3


  1. Differential expression of genes encoding 1-aminocyclopropane-1-carboxylate synthase in Arabidopsis during hypoxia. Peng, H.P., Lin, T.Y., Wang, N.N., Shih, M.C. Plant Mol. Biol. (2005) [Pubmed]
  2. The eto1, eto2, and eto3 mutations and cytokinin treatment increase ethylene biosynthesis in Arabidopsis by increasing the stability of ACS protein. Chae, H.S., Faure, F., Kieber, J.J. Plant Cell (2003) [Pubmed]
  3. Biochemical diversity among the 1-amino-cyclopropane-1-carboxylate synthase isozymes encoded by the Arabidopsis gene family. Yamagami, T., Tsuchisaka, A., Yamada, K., Haddon, W.F., Harden, L.A., Theologis, A. J. Biol. Chem. (2003) [Pubmed]
  4. The role of methionine recycling for ethylene synthesis in Arabidopsis. Bürstenbinder, K., Rzewuski, G., Wirtz, M., Hell, R., Sauter, M. Plant J. (2007) [Pubmed]
  5. Susceptibility to the sugar beet cyst nematode is modulated by ethylene signal transduction in Arabidopsis thaliana. Wubben, M.J., Su, H., Rodermel, S.R., Baum, T.J. Mol. Plant Microbe Interact. (2001) [Pubmed]
  6. Differential ethylene sensitivity of epidermal cells is involved in the establishment of cell pattern in the Arabidopsis root. Cao, X.F., Linstead, P., Berger, F., Kieber, J., Dolan, L. Physiol. Plantarum (1999) [Pubmed]
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